How to Save a Youtube Video in to Your Computer Kew Gardens NY

We are all used to watch video files online in Youtube. you must have always wanted to store the video in your local PC and wanted to watch it offline. Do you know how eazy to do this? that too with out using the help of any 3rd party website or tool. Here is the easiest method that allows you to save not only youtube videos but any other files which you can not directly copy from the website.